Trying to add a legal notification

I’m new to Webflow, but have CMS experience. I’m trying to build/create a legal notification banner that appears upon the home page load. I’ve tried to build it through divs, but can’t figure out how to add a close feature for the user to click.

Here is an example of the bottom banner I’m trying to achieve -

Thank you for any help in advance!


Here is my public share link: [LINK](Webflow - Sydnexis Inc.)
(how to access public share link)